Sole fitting machine



y w. R. BOLTON 2,046,604

SOLE FITTING MACHINE Original Filed April 24, 1934 fi u j Patented July 7, 1936 PATENT OFFICE SOLE FITTING MACHINE.

William Bolton, ,Chicago, Ill., assignor to United Shoe Machinery Corporation, Paterson,

N J., a corporation of New Jersey Original application April 24, 1934, Serial No. I 722,161. Divided and this application July 9,

1935, Serial No. 30,490

i 2 Claims. (CI. 12-40) This invention'relates to sole. fitting machines and is herein illustrated and described with reference to a machine for operating upon doublelipped insoles to facilitate the raising of the lips.

5 Insoles are commonly provided with an outer lip formed by an edge out and an inner lip formed by a face cut in the sole." These lips extend forwardly from about the breast line of the sole and are separated from each other by a relatively m small width of uncut sole material, known as the between substance.- The lips are subsequently turned up and secured to each other back to back to form a rib. This operation is performed by a lip-setting machine which, for example, may be of the type disclosed in United States Letters Patent No. 1,213,770, granted January 23, 1917, upon an application of Albert E. Johnson.

This application is a division of a oo-pending application for United States Letters Patent Serial No. 722,161, filed April 24, 1934 in my name, disclosing and claiming an improved method of manufacturing insoles of the type above described. That method consists in providing a double-lipped insole and removing material from the lips thereof at a locality near one of the ends of the lips to form notches which facilitate the entering beneath said lips of lip-raising instrumentalities; and preferably, simultaneously with the making of the notches, making cuts connecting said notches to ensure that, irrespective of the widths of the lips, the ends of the lips shall be severed from their outer edges to their points .of attachment to the insole. In carrying out the method, a novel product is produced, namely a double-lipped insole having the above-described notches and preferably also the cuts which connect the notches. This product is claimed in application Serial No. 722,161 above referred to.

It is an object of the present invention to provide an instrumentality for making the abovementioned cuts and notches upon double-lipped insoles to prepare them for the lip-raising operation. In accordance with a feature of the invention, the illustrated machine is provided with a knife having a straight portion for'cutting into the between substance and two U-shaped portions arranged at opposite ends of the straight portion for cutting the notches. I

Referring now to the accompanying drawing there is shown a machine for operating upon the ends of the insole lips preparatory to the lipraising and setting operation.

Fig. 1 is a view in perspective of the operating instrumentalities of a machine for forming cuts in the lips of an insole;

which has been operated upon by the machine shown in Fig. 1, illustrating the manner in which lip-raising instrumentalities are entered beneath the lips.

In Fig. 3 is shown a heel end of a double-lipped insole '8 having an outer lip L and an inner lip L. .::Each of the lips begins at a point slightly in to the rear of the breast line and extends continuously around the shank and forepart of the insole. In accordance with the improved method disclosed and claimed in my above-mentioned co-pending application, Serial No. 722,161, mal5 terial is removed from one end of the outer lip L to form a U-shaped notch N, and material is similarly removed from the inner lip L to form a U-shaped notch N. Connecting the notches N and N and extending through the between substance is a straight out C. The notches N and N and the cut C may conveniently be made by a knife such as that shown in Fig. 2 in a machine of the type shown in Fig. l, which will presently be described in detail. At the other end of the lips L and L, there may be conveniently formed a straight out C to mark definitely the termination of the lips. The cuts C and C are usually made at about the heel-breast line of the sole. After these operations have been performed upon the sole S, the lips L and L are raised and secured together by cement or stitching to form a ridge. The raising of the lips may conveniently be accomplished by the use of a machine such as that disclosed in the above-mentioned Letters Patent No. 1,213,770, which (as shown in Fig. 3 of that patent) is provided with a pair of plow-like members for engaging the under surface of the lips to turn the lips up. The notches N and N facilitate the entrance of these plow-like members beneath the lips. As shown in Fig. 3, one of the plows II] is in the process of entering beneath the lip L and the other plow 8 is in the process of entering beneath the lip L. As the sole is fed, the plows advance progressively beneath the lips and emerge at the cut C.

It will be noted that, according to the method as so far described, the cuts N, N and C are formed in an insole which has already been channeled. It may sometimes be convenient, however, and the result will be the same, to make these cuts in an insole blank before the lips L and L are formed by the channeling operation.

The improved machine which constitutes the subject-matter of the present application will now be described. As shown in Fig. 1, this machine consists of a frame l2 having a raised portion 14 which serves as a Work support. The

heel portion of the'sole S is centered upon the work table 14 by a pair of gages l6 which are controlled by mechanism similar to that disclosed in UnitedStatesLetters Patent No. 1",113,- 544, granted October1'3, 1914 upon an application of Miller Cook, Jr. As disclosed in that pat- H ent, the centering gages are mounted for transverse movement with respect to the centerline of the machine, being connected by gearing in ence may be had to the above-mentioned Letters Patent No. 1,113,544. H v the work table i4 is a gage 18 for engaging the rear end of the sole.v A bridge'member 2-1] series to hold the sole down against any tendency of the gages 16 to raise it. The machine is provided with a knife 22 having a cutting edge 24 which is shaped to form the notches N and N'.;and the straight out C. As shown in Fig. 2., the .cutting edge '24 has a straight portion for making the cut C and is bifurcated at each end for making the notchesN andN' respectively; The machine is alsoprovided with a knifeZB having a straight edge to form the cut C. The knives'22 and .26

Adjustably mounted on.

may conveniently be mounted and operated in the same manner as the knives disclosed in the above-mentioned Letters Patent No. 1,113,544.

In the operation of the machine, the heel end 7 of the sole S is passed beneath the bridge 20 and between the gages I 6 until the rear end of the sole abuts the" gage l8. Upon starting the ma chine, the knives 22 and 26 descend and make their respective cuts, the position (forwardly or rearwardly) of which cutsis determined by the :adjustmentof the gage 18. The knives maybe lowered and raised continuously, or, if desired, the machinemay be provided with a mechanism for stopping it automatically after each cycle of movementof the knives. g V

Having described the invention, what is claimed as new and desired to be secured by Letters Patentof'the United States is:

shaped portions-.lfor cutting into the between substance of theinsole. 7

' RLBOLTONK 

